Which of the following acts as both reducing and oxidising agent
Options
(a) H₂SO₄ (b) H₂O₂ (c) KOH (d) KMnO₄
Correct Answer:
H₂O₂
Explanation:
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The oxidation number of As in H₂AsO₄⁻ is
Options
(a) 6 (b) 5 (c) -7 (d) 9
Correct Answer:
5
Explanation:
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Which is the redox reaction
Options
(a) BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl (b) H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O (c) CH₃COOH + C₂H₅OH → CH₃COOC₂H₅ + H₂O (d) 2FeCl₃ + […]
Which of the following acts as an oxidising as well as reducing agent
Options
(a) Na₂O (b) Na₂O₂ (c) NaNO₃ (d) NaNO₂
Correct Answer:
NaNO₂
Explanation:
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What is the oxidation state of P in Ba(H₂PO₂)₂
Options
(a) 1 (b) 2 (c) 3 (d) -1
Correct Answer:
1
Explanation:
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Which conversion is an oxidation
Options
(a) SO₄²⁻ → SO₃ (b) Cu²⁺ → Cu (c) H⁺ → H (d) H⁻ → H
Correct Answer:
H⁻ → H
Explanation:
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The oxidation number of P in Mg₂P₂O₇ is
Options
(a) 2 (b) 5 (c) -3 (d) 3
Correct Answer:
5
Explanation:
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The oxidation number of nitrogen in HNO₃ is
Options
(a) 4 (b) 2 (c) 5 (d) 3
Correct Answer:
5
Explanation:
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In the following reaction reducing agent is 2K₃[Fe(CN)₆] + H₂O₂ + 2KOH → 2K₄[Fe(CN)₆] + 2H₂O + O₂
Options
(a) O₂ (b) H₂O (c) K₃[Fe(CN)₆] (d) H₂O₂
Correct Answer:
H₂O₂
Explanation:
No explanation […]
The oxidation state of Fe in brown ring complex [Fe(H₂O)₅NO]SO₄ is
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
2
Explanation:
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